H2O Masers in the Galactic Plane. II. Longitudes 260° to 326°

Abstract

We present details of 53 H20 masers located in the galactic plane between longitudes 260· and 326·. Twenty-one of these are new ones found at the sites of recently discovered OH masers. The properties of the individual masers are discussed, in particular the variability of sources known for several years and the high velocity emission exhibited by some masers. The association of H20 and OH masers has been investigated and out of 36 OH masers in this region of sky, a remarkably high number (34) have nearby H20 masers.